Sash fastener



FIG. 1 is a perspective view of a sash fastener showing my new design;

FIG. 2 is a top plan view of the sash fastener;

FIG. 3 is a cross-sectional view of the sash fastener, taken along line 3-3 of FIG. 4;

FIG. 4 is a left side elevational view of the sash fastener, the right side view being a mirror image thereof;

FIG. 5 is a front elevational view of the sash fastener;

FIG. 6 is a bottom plan view of the sash fastener;

FIG. 7 is a perspective view of a bolt of the sash fastener, shown separately for clarity; and,

FIG. 8 is a rear elevational view the sash fastener. 

The ornamental design for a sash fastener, as shown and described. 